After using the hexcodes on this site to turn lowercase on and off, I noticed that after exiting from the Puzzle Pack app, RAM Free was 0, forcing me to archive everything in RAM and then reset RAM. I have tried deleting the Puzzle Pack app and reinstalling it, but it did not help. Is there any way I can fix this without completely resetting my calculator?

Yes. The assembly codes worked, but I did read somewhere else on the forum that the assembly codes in question work by setting some byte in the memory. Could the byte in memory correspond to one of the bytes used by the app?

Which OS version do you have?
Do you have any other apps or programs that you use?
Did you try any other codes?

47%? Take a look and try to imagine how cool 100% will be. This has won zContest 2011 and made news on TICalc. This compromise between Assembly and BASIC parses like BASIC and is fast like assembly. Grammer 2

I have V1.19. I also have and use Catalog Help, Probability Simulation, and Science Tools, none of which experience problems. I have no problems with any of my programs, and all other assembly codes I have used did not cause any problems as far as I know. The other assembly codes I have used are the battery level, toggle program editability, return OS version, turn on alpha-lock, toggle inverted text, and turn the run indicator on and off. I have also used the code for your XtraVars program to get all of the special characters into a string that I then stored in a program. As I said, I never had any problems until after I used the lowercase on code, and the problems persisted after I used the lowercase off code and deleted and redownloaded the Puzzle Pack app.

So after a RAM clear, are you able to replicate the problem? Like, run the lowercase on code, then run Puzzle Pack, and see if it does the same? I don't have 1.19 to test on atm, but the lowercase could should definitely work just fine,

47%? Take a look and try to imagine how cool 100% will be. This has won zContest 2011 and made news on TICalc. This compromise between Assembly and BASIC parses like BASIC and is fast like assembly. Grammer 2

The problem persists after a RAM clear. All the RAM clear does is clears the memory in RAM so I can use the calculator again. But I did notice something else. Using GarbageCollect after the RAM clear takes a while, so it's definitely clearing somethin. Even if I ran GarbageCollect before running the Puzzle Pack app. But I'll try using the lowercase code again to see what happens.